CN217153221U

CN217153221U - Reverse cam type starting actuator

Info

Publication number: CN217153221U
Application number: CN202220396488.4U
Authority: CN
Inventors: 胡嘉楠; 胡奥琦; 唐朝鹤; 胡温雨
Original assignee: Zhejiang Aozheng Automatic Control Valve Technology Co ltd
Current assignee: Zhejiang Aozheng Automatic Control Valve Technology Co ltd
Priority date: 2022-02-26
Filing date: 2022-02-26
Publication date: 2022-08-09
Anticipated expiration: 2032-02-26

Abstract

The utility model relates to a pneumatic actuator field discloses an anti-cam type starts executor, which comprises a housin, the inside middle part of casing is rotated and is connected with the gear shaft, gear shaft top end fixedly connected with controller, the outside end of piston all connects the medial extremity at the end cover through a plurality of reset spring, the inside sliding connection of batch oil tank has the clamp plate, casing top middle part fixedly connected with push rod, the top middle part and the fixed connection of push pedal of batch oil tank are run through on the push rod top. The utility model discloses in, through pressing the push pedal, make the clamp plate advance the gear epaxially through defeated oil pipe input with the lubricating oil in the oil storage tank, realize lubricating the maintenance action to inside, can prevent through the filter screen that the impurity dust access device in the gas is inside to cause the jam, improve the operational environment of gear shaft, the structure safety is firm, can be better satisfy the user demand, and the proof mass has improved life.

Description

Reverse cam type starting actuator

Technical Field

The utility model relates to a pneumatic actuator field especially relates to an anti-cam type starts executor.

Background

The pneumatic actuator is an actuating device for opening and closing or regulating a valve by air pressure, is also called a pneumatic actuating mechanism or a pneumatic device, but is generally called a pneumatic head, the pneumatic actuator is sometimes provided with a certain auxiliary device, and is commonly used with a valve positioner and a hand wheel mechanism.

Pneumatic actuator is because compression piston removes through the input gas at the during operation, thereby drive the motion of rack plate, the rack plate drives the gear shaft and rotates, thereby realize that the gear shaft opens the valve, through giving out gas when closing, utilize the spring to reset it, can often produce the friction between whole in-process rack plate and the gear shaft, long-term use can cause the card to pause, wearing and tearing, it is comparatively time-consuming and energy-consuming to unpack the maintenance apart, and if there are some impurity in the gas, long-term use can influence the normal work of executor, these problems need be solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an anti-cam type starting actuator.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a reverse cam formula starts executor, includes the casing, the inside middle part of casing rotates and is connected with the gear shaft, gear shaft top end fixedly connected with controller, the equal sliding connection in both sides has the piston in the casing, the outside end of piston all connects the medial extremity at the end cover through a plurality of reset spring, the left side the right-hand member rear side and the right side of piston the equal fixedly connected with rack plate in left end front side of piston, casing top one side fixedly connected with batch oil tank, the inside sliding connection of batch oil tank has the clamp plate, clamp plate top middle part fixedly connected with push rod, the push rod top runs through the top middle part and the fixed connection of batch oil tank at the bottom middle part of push pedal, the inside lubricating oil that is provided with of batch oil tank.

As a further description of the above technical solution:

the four corners of the end cover are connected to the two ends of the shell through bolts.

As a further description of the above technical solution:

one side of the inner side end of the rack plate is connected with the inner side end of the piston through reinforcing ribs.

As a further description of the above technical solution:

the other end of the inner side end of each rack plate is meshed with the gear shaft.

As a further description of the above technical solution:

and the inner diameter of the inner side end of the end cover is fixedly connected with a sealing ring.

As a further description of the above technical solution:

the casing front end both sides all are provided with the air vent, all fixedly connected with filter screen on the air vent internal diameter.

As a further description of the above technical solution:

the pressing plate bottom end is fixedly connected to one end of the compression spring, and the other end of the compression spring is fixedly connected to the inner wall of the bottom end of the oil storage tank.

As a further description of the above technical solution:

oil storage tank left end downside fixed connection is in defeated oil pipe one end, defeated oil pipe other end runs through the casing upper surface and extends to the top one side of gear shaft.

The utility model discloses following beneficial effect has:

1. the utility model discloses in, through pressing the push pedal for the push rod oppresses the clamp plate and descends, and on the lubricating oil of clamp plate in with the oil storage tank entered the gear shaft through defeated oil pipe, accomplished the back, compression spring resets the clamp plate, can realize lubricating the maintenance action to inside under the condition of not dismantling the structure, extension fixture's life.

2. The utility model discloses in, through increasing the filter screen in the air vent, can prevent that the inside jam that causes of impurity dust access device in the gas, improve the operational environment of gear shaft, can increase sealing capacity through the sealing washer, the strengthening rib further increases the stability of rack board, improves overall structure's job stabilization nature, and the structure is safe firm, can be better satisfy the user demand, and the proof mass has improved life.

Drawings

Fig. 1 is a schematic perspective view of an inverted cam type start actuator according to the present invention;

fig. 2 is an exploded schematic view of an inverted cam type start actuator according to the present invention;

fig. 3 is a cross-sectional view of an oil storage tank in the reverse cam type start actuator according to the present invention.

Illustration of the drawings:

1. a housing; 2. a gear shaft; 3. a controller; 4. a piston; 5. a return spring; 6. an end cap; 7. a bolt; 8. a rack plate; 9. reinforcing ribs; 10. a seal ring; 11. a vent hole; 12. filtering with a screen; 13. an oil storage tank; 14. pressing a plate; 15. a compression spring; 16. a push rod; 17. pushing the plate; 18. lubricating oil; 19. an oil delivery pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: a reverse cam type starting actuator comprises a shell 1, a gear shaft 2 is rotatably connected to the middle inside the shell 1, one of the main structures is that the bottom end is used for being connected with a valve body, a controller 3 is fixedly connected to the top end of the gear shaft 2 and is convenient to control, pistons 4 are slidably connected to two sides inside the shell 1, the outer side ends of the pistons 4 are respectively connected to the inner side end of an end cover 6 through a plurality of reset springs 5, rack plates 8 are fixedly connected to the rear side of the right end of the left piston 4 and the front side of the left end of the right piston 4, after air enters, the pistons 4 are pressed by air to move towards two sides and drive the rack plates 8 to move, so that the rack plates 8 drive the gear shaft 2 to rotate, and accordingly the valve is opened and closed, an oil storage tank 13 is fixedly connected to one side of the top end of the shell 1 and internally contains lubricating oil 18, a pressing plate 14 is slidably connected to the inside of the oil storage tank 13, and a push rod 16 is fixedly connected to the middle of the top end of the pressing plate 14, the top middle part and the bottom middle part of fixed connection at push pedal 17 of batch oil tank 13 are run through on push rod 16 top, batch oil tank 13 is inside to be provided with lubricating oil 18, through pressing push pedal 17, make push rod 16 oppress clamp plate 14 and descend, on clamp plate 14 imports into gear shaft 2 with lubricating oil 18 in batch oil tank 13 through defeated oil pipe 19, after the completion, compression spring 15 resets clamp plate 14, can realize not carrying out the condition dismantled to the structure under, lubricate the maintenance action to inside.

Four corners of the end cover 6 are connected with two ends of the shell 1 through bolts 7, disassembly is convenient, one side of the inner side end of the rack plate 8 is connected with the inner side end of the piston 4 through reinforcing ribs 9, strength is increased, the other end of the inner side end of the rack plate 8 is meshed with the gear shaft 2, a sealing ring 10 is fixedly connected on the inner diameter of the inner side end of the end cover 6, sealing effect is increased, air vents 11 are arranged on two sides of the front end of the shell 1 and are mainly used for air inlet and outlet, a filter screen 12 is fixedly connected on the inner diameter of each air vent 11 and is used for filtering impurities in air, the bottom end of the pressing plate 14 is fixedly connected with one end of a compression spring 15, the other end of the compression spring 15 is fixedly connected with the inner wall of the bottom end of the oil storage tank 13, the oil storage tank 13 is conveniently used for the next time after reset, the lower side of the left end of the oil storage tank 13 is fixedly connected with one end of an oil delivery pipe 19, the other end of the oil delivery pipe 19 penetrates through the upper surface of the shell 1 and extends to one side above the gear shaft 2, lubrication and transmission to the gear shaft 2 are facilitated.

The working principle is as follows: through pressing push pedal 17, make push rod 16 oppress clamp plate 14 and descend, on clamp plate 14 imports into gear shaft 2 through defeated oil pipe 19 with lubricating oil 18 in the oil storage tank 13, after the completion, compression spring 15 resets clamp plate 14, can realize not dismantling the condition to the structure under, lubricate the maintenance action to inside, through increase filter screen 12 in air vent 11, can prevent that the inside jam that causes of impurity dust access device in the gas, improve the operational environment of gear shaft 2, can increase sealing capacity through sealing washer 10, strengthening rib 9 further increases rack plate 8's stability, improve overall structure's job stabilization nature.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. An anti-cam actuator comprising a housing (1), characterized in that: a gear shaft (2) is rotatably connected in the middle of the interior of the shell (1), the top end of the gear shaft (2) is fixedly connected with a controller (3), pistons (4) are connected with two sides in the shell (1) in a sliding manner, the outer side ends of the pistons (4) are connected with the inner side end of an end cover (6) through a plurality of reset springs (5), rack plates (8) are fixedly connected with the rear side of the right end of the piston (4) on the left side and the front side of the left end of the piston (4) on the right side, an oil storage tank (13) is fixedly connected with one side of the top end of the shell (1), a pressure plate (14) is connected in the oil storage tank (13) in a sliding manner, clamp plate (14) top middle part fixedly connected with push rod (16), the top middle part and the fixed connection of push rod (16) top through oil storage tank (13) are at the bottom middle part of push pedal (17), oil storage tank (13) inside is provided with lubricating oil (18).

2. An anti-cam actuator according to claim 1, wherein: four corners of the end cover (6) are connected to two ends of the shell (1) through bolts (7).

3. An anti-cam actuator according to claim 1, wherein: one side of the inner side end of the rack plate (8) is connected with the inner side end of the piston (4) through a reinforcing rib (9).

4. An anti-cam actuator according to claim 1, wherein: the other end of the inner side end of the rack plate (8) is meshed with the gear shaft (2).

5. An anti-cam actuator according to claim 1, wherein: and the inner diameters of the inner side ends of the end covers (6) are fixedly connected with sealing rings (10).

6. An anti-cam actuator according to claim 1, wherein: both sides of the front end of the shell (1) are provided with vent holes (11), and the inner diameters of the vent holes (11) are fixedly connected with filter screens (12).

7. An anti-cam actuator according to claim 1, wherein: the bottom end of the pressing plate (14) is fixedly connected to one end of a compression spring (15), and the other end of the compression spring (15) is fixedly connected to the inner wall of the bottom end of the oil storage tank (13).

8. An anti-cam actuator according to claim 1, wherein: oil storage tank (13) left end downside fixed connection is in defeated oil pipe (19) one end, defeated oil pipe (19) other end runs through casing (1) upper surface and extends to the top one side of gear shaft (2).